I am on Win7 and am having some of the same issues:Getting lots of An error has occurred when activating this vieworg/eclipse/php/internal/debug/core/preferences/PHPProjectPreferencesDebugging is gone, getting "The current displayed page contains invalid values" when I click on php/debug in preferencesSVN is just plain gone from SF (still on the file system)Uninstalled/Reinstalled 3 or 4 times with same outcome, I'm totally dead in the water, where can I get a 9.0.0 down version? 9.0.3 is totally broken for windows too, not just mac

I am a huge Zend advocate and use Studio exclusively and this is just not acceptable.

Updates Broken.Github support has never worked as described.Android emulator support has never worked as described.

After working all day, I come home, open Zend and see that there is an update. I think - awesome, maybe this update will fix some of the issues I have had in MAC, and instead, my Zend install will no longer open. Awesome. So now I have to fix my IDE before I can continue working.

We are working to solve this issue.Could you tell me if you had php 5.4 feature installed before update? Could you send me your bundles.info file:<Zend_Studio_Home>\configuration\org.eclipse.equinox.simpleconfigurator\bundles.info

The problem came to me too after to have made an update to 9.0.4.v20121009466 and deactivated in the welcome page, the modules (Amazon, Apache Derby, MSSQL and Oracle support), the library was missing. Copy the file provided by a Zend Team member resolved the problem.